add parser for whois.wildwestdomains.com and little changes in scannable.rb(add method regular_node()), parser base_icann_compliant(add in property expires_on regular_node() and scanner base_icann_compliant(add some self.tokenizers and add in tokenizer :scan_available in if skip_until))
Merge branch 'master' into pr/271

Conflicts:
	lib/whois/record/scanners/base_icann_compliant.rb
	lib/whois/record/scanners/scannable.rb
Fix not-standard whois.wildwestdomains.com expires_on property
Merge branch 'pr/271'
Update parser headers

I removed author names not because I don't appreciate them, but because it's hard to maintain the list.
Please refer to the Git changelog to see the list of contributors.
CHANGELOG for GH-271
Regenerate gemspec